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- // Copyright 2020 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "span.h"
- #include <algorithm>
- namespace crdtp {
- bool SpanLessThan(span<uint8_t> x, span<uint8_t> y) noexcept {
- auto min_size = std::min(x.size(), y.size());
- const int r = min_size == 0 ? 0 : memcmp(x.data(), y.data(), min_size);
- return (r < 0) || (r == 0 && x.size() < y.size());
- }
- bool SpanEquals(span<uint8_t> x, span<uint8_t> y) noexcept {
- auto len = x.size();
- if (len != y.size())
- return false;
- return x.data() == y.data() || len == 0 ||
- std::memcmp(x.data(), y.data(), len) == 0;
- }
- bool SpanLessThan(span<char> x, span<char> y) noexcept {
- auto min_size = std::min(x.size(), y.size());
- const int r = min_size == 0 ? 0 : memcmp(x.data(), y.data(), min_size);
- return (r < 0) || (r == 0 && x.size() < y.size());
- }
- bool SpanEquals(span<char> x, span<char> y) noexcept {
- auto len = x.size();
- if (len != y.size())
- return false;
- return x.data() == y.data() || len == 0 ||
- std::memcmp(x.data(), y.data(), len) == 0;
- }
- } // namespace crdtp
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